This ordnance gelatin block, shot with a 180-gr. TTSX from a .30-'06 Sprg. at 100 yards, is representative of performance from Barnes all-copper projectiles – deep penetration, excellent expansion, and maximum tissue/organ disruption.
With its higher velocity, and therefore wider expansion diameter, the 180-gr. TTSX from the .300 Rem. Ultra Mag. at 100 yards created additional damage to the ordnance gelatin block (bottom). For comparison, the top block was shot with same bullet from a .30-'06 Sprg. (top).